Monte Carlo Simulation of Shear Capacity of URM Walls Retrofitted by Polyurea Reinforced GFRP Grids

Silva, Pedro da; Yu, Peng; Nanni, Antonio

doi:10.1061/(asce)1090-0268(2008)12:4(405)

Cited by 41 publications

(23 citation statements)

References 9 publications

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“…The cohesive strength obtained with the triplet experiments was 0.38 N/mm 2 . An average value for cohesive strength τ 0 of 3% of the masonry gross area compressive strength f ′ m is suggested in various researches (Li et al 2005;Silva et al 2008;Petersen 2009;Babaeidarabad et al 2014), resulting in 0.44 N/mm 2 for the masonry used in this study. For the coefficient of friction μ 0 , a typical range from 0.3 to 1.2 is assumed (Li et al 2005), with an average of 0.75.…”

Section: Analytical Modelmentioning

confidence: 76%

“…Depending on physical and mechanical properties of a wall, four possible failure modes have been identified for URM (Li et al 2005;Silva et al 2008;Petersen 2009;Fig. 12 Photo of the loading shoe…”

Section: Failure Modesmentioning

confidence: 99%

“…(19). The tensile strength of the clay brick masonry f ′ tb is determined by Silva et al (2008) using Eq. (20):Substituting Eq.…”

Section: Analytical Modelmentioning

confidence: 99%

“…(35). It should be noted that the FRCM contribution is considered only after masonry cracking (Li et al 2005;Silva et al 2008;Petersen 2009;ACI 549-13 2013;Babaeidarabad et al 2014).…”

Section: Evaluation Frcm Reinforced Masonrymentioning

confidence: 99%

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In-plane behaviour of clay brick masonry wallettes retrofitted with single-sided fabric-reinforced cementitious matrix and deep mounted carbon fibre strips

Türkmen

Vries²,

Wijte

et al. 2019

Bull Earthquake Eng

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The in-plane shear behaviour of a new seismic retrofit concept which combines two standalone retrofit measures for in-plane and out-of-plane strengthening of masonry walls was investigated. The in-plane reinforcement consists of a single-sided carbon fabric-reinforced cementitious matrix (FRCM) overlay, while the out-of-plane reinforcement consists of deep mounted carbon fibre reinforced polymer strips embedded in a viscous-elastic epoxy. An experimental program was undertaken in which clay brick masonry wallettes were subjected to the diagonal compression test to assess the effectiveness of the strengthening system on the in-plane behaviour. The obtained results showed that the single-sided carbon FRCM overlay increased the shear capacity with 80%, compared to the unstrengthened control specimens. Moreover, by testing two different FRCM overlay thicknesses it was found that a thicker matrix layer does not increase the shear capacity of wallettes. However, wallettes provided with a thicker FRCM overlay did show a higher level of ductility. Furthermore, the obtained experimental results showed that the presence of only the aforementioned out-of-plane reinforcement does not affect the in-plane strength of masonry wallettes loaded under shear, and even prevented the disintegration after reaching the failure load compared to the unstrengthened control specimens. Finally, an existing analytical model as well as the Eurocode 8 design provisions were compared to the found failure mechanisms and failure loads. The analytical model developed showed good correspondence with the experimental values for both the failure mechanism and failure load, with an experimental/ model ratio () of 0.98, while Eurocode 8 proved to lead to conservative values.

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Section: Analytical Modelmentioning

confidence: 76%

Section: Failure Modesmentioning

confidence: 99%

“…(19). The tensile strength of the clay brick masonry f ′ tb is determined by Silva et al (2008) using Eq. (20):Substituting Eq.…”

Section: Analytical Modelmentioning

confidence: 99%

“…(35). It should be noted that the FRCM contribution is considered only after masonry cracking (Li et al 2005;Silva et al 2008;Petersen 2009;ACI 549-13 2013;Babaeidarabad et al 2014).…”

Section: Evaluation Frcm Reinforced Masonrymentioning

confidence: 99%

See 2 more Smart Citations

In-plane behaviour of clay brick masonry wallettes retrofitted with single-sided fabric-reinforced cementitious matrix and deep mounted carbon fibre strips

Türkmen

Vries²,

Wijte

et al. 2019

Bull Earthquake Eng

View full text Add to dashboard Cite

show abstract

“…Kuzik et al (2003) have retrofitted eight concrete brick samples with different dimensions but same type and characteristics of GFPR sheet. Silva et al (2008) reported the use of polyurea and GFRP to retrofit the walls. The concrete and clay masonry walls were prepared with the application of Portland cement-sand mortar.…”

Section: Glass Fiber Reinforced Polymer (Gfrp) Masonry Retrofittingmentioning

confidence: 99%

Seismic and Thermal Retrofitting of Masonry Buildings with Fiber Reinforced Composite Systems: A State of the Art Review

Majumder¹,

Stochino²,

Martinelli³

2021

International Journal of Structural Glass and Advanced Material

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Old masonry buildings represent the largest part of traditional constructions. Generally, they are both seismically vulnerable and thermally dispersive. Therefore, the need for seismic and thermal retrofitting aimed at reducing their vulnerability and environmental impact has motivated research efforts towards sustainable retrofitting solutions. This study presents a literature review of the approaches currently available for masonry retrofitting. Specifically, it highlights the use of fiber in textile form i.e., Textile Reinforcement Mortar (TRM), as Fiber Reinforced Polymer (FRP) and natural fibers (animal and plant sources) to masonry retrofitting. In addition, specific attention is devoted to the integrated (structural and thermal) fiber-based integrated retrofitting techniques that are becoming very important in the last years.

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Experimental Studies on Polyester Geo-Fabric Strengthened Masonry Elements

Sreekeshava

Arunkumar

Ravishankar

2020

Lecture Notes in Civil Engineering

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Monte Carlo Simulation of Shear Capacity of URM Walls Retrofitted by Polyurea Reinforced GFRP Grids

Cited by 41 publications

References 9 publications

In-plane behaviour of clay brick masonry wallettes retrofitted with single-sided fabric-reinforced cementitious matrix and deep mounted carbon fibre strips

In-plane behaviour of clay brick masonry wallettes retrofitted with single-sided fabric-reinforced cementitious matrix and deep mounted carbon fibre strips

Seismic and Thermal Retrofitting of Masonry Buildings with Fiber Reinforced Composite Systems: A State of the Art Review

Experimental Studies on Polyester Geo-Fabric Strengthened Masonry Elements

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